GFX11 reorganizes the shader perfcounter blocks: wave counts move from
SQ to the SQG registers (still mapped as the SQ block in ac/), while
per-instruction counters move from SQ to the new SQ_WGP block.
Add GFX11-specific selector enums using the new block assignments and
branch radv_query_perfcounter_descs to select them on GFX11+. GL2C,
GL1C, and TCP selectors are unchanged between GFX10.3 and GFX11.
The "Instructions" (total count) counter is dropped on GFX11 as there
is no direct SQ_WGP equivalent for INSTS_ALL.
Selector indices verified against gpu_performance_api's
gpa_hw_counter_gfx11.cc.
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41157>